<!DOCTYPE html>
<html>
<head>
	<meta charset="UTF-8">
	<title>运算符-算数运算符</title>
</head>
<body>
	<script type="text/javascript">
		var x = 10;
		var y = 4;
		var sum = x + y;

		var sum2 = 4 + 5 + x + y;
		var en = x-y;
		var or = x * y;
		var op = x % y * sum;
		alert(or);
		alert(op);
		var c =  (x + sum) / 4 -3;
		alert(c);





	</script>
</body>
</html>